231430243 has 8 divisors (see below), whose sum is σ = 252837936. Its totient is φ = 210084000.

The previous prime is 231430219. The next prime is 231430247. The reversal of 231430243 is 342034132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231430243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231430247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7296 + ... + 22717.

It is an arithmetic number, because the mean of its divisors is an integer number (31604742).

Almost surely, 2^231430243 is an apocalyptic number.

231430243 is a deficient number, since it is larger than the sum of its proper divisors (21407693).

231430243 is a wasteful number, since it uses less digits than its factorization.

231430243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30725.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 231430243 is about 15212.8315247360. The cubic root of 231430243 is about 613.9599430272.

Adding to 231430243 its reverse (342034132), we get a palindrome (573464375).

The spelling of 231430243 in words is "two hundred thirty-one million, four hundred thirty thousand, two hundred forty-three".